NCERT#!#Properties of Whole numbers

The sum of any two whole numbers is a whole number? This property of whole number is referred to as

Property 2 If a is any whole number then a-:1=a.

Find the sum, using the associative property of addition of whole numbers. 73 + 47 + 53

Find the sum, using the associative property of addition of whole numbers. 351 + 98 + 102

Find the sum, using the associative property of addition of whole numbers. 63 + 137 + 56

Find the sum, using the associative property of addition of whole numbers. 723 + 56 + 44

Find the sum, using the associative property of addition of whole numbers. 87 + 113 + 257

Find the sum, using the associative property of addition of whole numbers. 45 + 118 + 82

Property 4 The subtraction of whole numbers is not associative.That is if abc are three whole numbers then in general a-(b-c) is not equal to (a-b)-c

Property 2 The subtraction of whole numbers is not commutative that is if a and b are two whole numbers then in general a-b is not equal to (b-a)